Plaster-support for walls.



P. L. KANE, v PLASTER SUPPORT FORWALL S.

APPLICATION FILE!) MAY 18, 1912.

' Patented Dec. 15,1914.

. "To all 'who me't may concern ters Patent of the; United States N o.

1,003,754, dated'September 19, 19 11.

' terial from sagging before the plaster sets.

act description.

-, TUNIIiED STATES PATENT ,rnnnnitrcn L. KANE, or nuncrmer-oiv, newness. 1

Be it lmown that I, FREDERIGKIVL. KANE,

of Huntington, Siiifolk county, New York,

have-invented a"n'ew"and useful Improvement in Plaster-{Supports for Walls, of

which the following is a full, clear, and ex--' My inventionrelatesto"improvements to plaster supports fo'rjw'all's of buildings, and

this particular invention is an impro'vement on the invention disclosed. in Let- The object of my present invention is to -minimize the transverse vflexibility of the stifi'ening strip or rib, so as to stiifen the 'stifien ing strip orrib longitudinally. In my previous patent'above referredto, I dis- Y close; a 'flat strengthening strip which is applied at intervals transversely to\a sheet of paper either laminated or plain, so that when the plaster support is appliedito the I studding or ceiling beams of a wall-,the strip will prevent the paper or fibrous inaapplying the board or sheet, and owing to its great flexibility it will. bend of its own weight, and the workman will nailithe sheet support to the wall without taking/pains to straighten it out, and thus a curve or bulging in the sheet is produced, ,inaking it' more diflicult to' produce a flatsatisfactorv wall when the plaster isapplied, and also making it necessaryto use more plaster to v fill up the irregularities. I havefound by experimenting that if the I strengthening strips or ribs which are applied to the sheet, are crimped longitudi nally',-either by a single curve, or'bya plurality of corrugations,i the strip. or rib is very much strengthened'without increasing the thickness of the material, anditcan be as easily applied to'the plaster sheet which is to he stiifened. Whenthe strengthening "strip is stiiieneda's described,-it makes the "Specification 0! Letters Patent.

transverse supporting sheet cost. no more, it is i applied rammedneeiis, 1914i: Application filed my 18,1912. ScrialNQ. 688,652; i

transversely as in the other patent.{referred 7 toso that thesheet can be rolled apes well 'as heretoforeand when applied,the' rib is sufficiently rigid to hol ing drawings forming a part of this specification, in which similar reference characters indicate corresponding parts in all the views. I

Figure l is ahroken front elevation showing the application of the plaster support to the studdingof a room. Fig. 2 vis a broken enlarged perspective view showing a portion of the paper sheet with the stiifening strips thereon, and Figs. 8 to 6 are details of various forms of the strengthening strip.

The support comprises a sheet 10 which is of flexible material so that 'it'can be rolled upiconveniently and shipped in a roll, and

it is usually. of a width to span two. joists, 11 when these are placed at ordinary -distances: The transverse strips12 are of thin sheet metal so as to give additional strength to the sheet 10, and they are applied transversely at frequent intervals, the mode of application being immaterial, but they are preferably provided with struck-up brads which pierce the sheet 10 and are clenched as described. in the former patent, and as indicated at 1%; When the strip 12 is perfectly flat, it has the necessary strengthening efiect if the sheet 10 is carefully applied as above described but owing to the great ,flexibility of the sheet, and of the 'strip 12, sagging may occurthrough carelessness. I find, however, that by making the transverse strengthening strip in a curved form, as shown in Fig. 3, all this sagging tendency is done away with, and the strip isstiff enough to hold the sheet lfl taut and fiat when applied either .overhead or to aside wall.

any thicker than heretofore, and it costs no more to apply it because itis applied by machinery, and the machine which applies the strip canshape it as it is applied, without any additional expense; Obviously the g strip can he strengthened, that is stiffened, I

its" The strengthening devices need not be thing-1s to. have it crimped ,or corrugated longitudinally as stated, tothe-end that the handling of the sheet may not be interfered with, but that it, will keep the sheet 10 straight when the latter is applied.

. QI have not disclosed any particular structure ofthe sheet 10, as this can be a sheet of paper, plain or laminated, or of other fibrous flexible material Which will afiord a suitable support for Wall plaster when the latter is applied to the sheet. It will be understood,

that the sheet is used as a substitute for lath, and that it is nailed to the studding or Wall in the usual Way, after which the plaster and skim coat are applied as usual.

I claim As an improved article of manufacture, a flexible sheet of fibrous material for a plaster Wall support, said sheet having on its surface thin, transverse metallic strengthening strips which are firmly secured to the corrugated.

FREDERICK L. KANE.

Witnesses:

WARREN' B. HUTCHINSON, ARTHUR G. DANNELL.

as the previous case. above referred to,

sheet, and which are transversely curved or- 35 

